If between-groups variance is much larger than within-groups variance, we infer that the sample means are _____ one another, and we _____ the null hypothesis.
A) different from; reject
B) similar to; fail to reject
C) different from; fail to reject
D) similar to; reject

Question

Quizplus · Accepted Answer

When between-groups variance is much larger than within-groups variance, it indicates that there are significant differences between the group means, leading to rejection of the null hypothesis. Therefore, we choose option A: different from; reject.

If Between-Groups Variance Is Much Larger Than Within-Groups Variance, We